Development of Seismic Design Method for Response-control Structural Systems of Steel Frames under Overturning-moment Control

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One of the advantages of response-control structural systems of steel frames with uplift column-bases under overturning moment control is that the seismic response of the systems is reduced by making use of vertical loads generally deteriorating the seismic performance of ordinary structures. Evaluated and examined are the plastic deformation capacity of column bases with uplift-yielding base plates, the seismic response characteristics of the systems such as multi-span and braced frames, the three-dimensional seismic behavior of the systems, and seismic energy response of the systems. The fundamental seismic design method of the systems is established through summarizing the results of this study.